Add balance_class template filter
Shift the wallet_journal template filter form into a separate included template
Add a month_name filter
Add a wallet_journal common function
Template changes for wallet_journal_aggregate
Add views.wallet_journal.wallet_journal_aggregate
CSS updates for wallet_journal_aggregate
Remove views.wallet_journal.wjthing
Remove models.JournalSummary
Merge branch 'feature/wallet-journal-aggregation' into develop